Sole-leveling machine



(No Model.) 3 Sheets-Sheet 1. A. K. WASHBURN. SOLE LBVELING MAGHINE.

Patented May 26, 1896.

( No Model.) A 3- -Slireets-Sheet 2. A. K. WASHBURN. SOLE LEVELING MACHINE.

No. 561,035. Patented May 26, 1896.

in L; wl-r lEss/zas IPh/EIJITDW amwa 5 6 M UNITED STATES PATENT GEEICE.

ALBION K. \VASHBURN, OF BRIDGEW'ATER, MASSACHUSETTS.

SOLE-LEVELING MACHINE.

FEEECIFIGATION forming part Of Letters Patent No. 561 ,035, dated May 26, 1896. Application filed January 2, 1896. gerial No. 574,138. (No model.)

To all whom it may concern:

Be it known that I, ALBION IQWASHBURN, of Bridgewater,in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Sole-Leveling Machines, of which the following, taken in connection with the accompanying drawings, is a specification.

My invention relates to improvements in the construction and arrangement of parts of a leveling-machine; and it consists in so arranging the frame that holds and guides the leveling-roller that the inclination of the axis of the said roller may be controlled by the operator by a lever mechanism which will not transmit any of the vibration, due to the rapid movement of the roller-frame, to the hands of the operator.

The invention also consists in a device by which the shoe-jack is made to oscillate so as to present all parts of the sole to the action of the leveling-roller, the object being to so improve the mechanism as to make it more effective in its work and much easier for the operator. This object I attain by the mechanism shown in the accompanying drawings, in which Figure 1 is an elevation of one side of the machine, looking from the left. Fig. 2 is an elevation of one side of the machine, looking from the right. Fig. 3 is a front elevation of the machine. Figs. 4 and 5 show parts in detail.

In the drawings the frame of the machine is represented by A AA At the upper part A of the frame are bolted two housings A A. These housings serve as journal-bearings for the hollow drum B, which is free to turn on its axis. Attached to the drum B by means of the trunnions B B are two arms B which, together with the cross-piece B and the waypieces B form a frame for the roller B and its connecting parts to slide in. The roller B is mounted in a suitable'housing-piece which is adapted to slide in the ways B B (See Fig. 3.) Motion is given to the roller B by means of the pitman K, which passes through the hollow drum B and is connected at K to the lever K said lever K being pivoted at K and operated by the pitman K and eccentric K on the shaft K, motion being given to the shaft K by the power-driven pulley F The leveling-roller B is rolled rapidly back and forth lengthwise of the sole of the shoe, but with a yielding pressure, which is exerted upon it by the yoke-piece C C 0. (See Fig. 5.) The upper end of this yokepiece is connected by a pivot 0 (Figs. 2 and 5) to the cross-pieces b b of the roller-frame B B so that the frame is free to turn on its longitudinal axis, thus allowing the leveling roller B to work upon all parts of the sole. A yielding pressure is brought to bear upon the roller and its frame by the treadle C and rods 0 C The said rods pass up through the foot-pieces C O of the yoke C and through compression spiral springs O C. Screw-nuts O C at the upper ends of the rods C C serve to bring a pressure to bear on the upper ends of the springs, the said pressure being transmitted to the yoke O C O, and thence to the frame B B and the leveling-roller B.

I will now describe my device for causing the leveling-roller B to assume any desired axial inclination, so as to adapt itself to the surface of the sole. One of the trunnions B, (see Figs. 2 and 3,) that extend from the drum B, has attached to it, by a swivel-piece B a rod 13 the other end of the rod 13 being connected by a swivel-joint B to a hand-lever B B", said lever being pivoted at B and having a handle B The operator by simply moving the lever B B may give any desired inclination to the axis of the roller B and as the lever, through its link 13", is connected directly to the drum B it will not in any degree receive or partake of the vibrating motion given to the frame B B and consequently the operator is in no way incommoded. or disagreeably affected by the vibrations, as in the case of ordinary machines of this class.

I will describe the shoe-jack but briefly, as its construction is not radically new. The jack consists of a base-piece D, having a heelstandard D and a slide-arm D for receiving the toe-supporting piece-D The heel-last pin D Fig. 1, is mounted in a rocking piece D which is actuated by a link D, a lever D and an eccentric D said eccentric being controlled by the hand-lever D". These parts are cretion of the operator.

loosely upon the shaft E of the jack-controlling wheel E, but is rigidly attached to the sprocket-wheel E (see Fig. 1,) so that any motion given to the said sprocket-wheel IE will be transferred to the jack. The sprocketwheel E is connected by a chain E to the small sprocket-wheel E", keyed to the shaft E.

E is a large sprocket-wheel also keyed to the shaft and is connected by a chain E to a small sprocket-wheel (at E, Fig. connected directly to the jack-controlling wheel E. From the above it may be seen that any motion given to the jack-controlling wheel E will be transmitted, through the small sprocket on said wheel, (not shown,) the sprocket-chain E, sprocket-wheel E shaft E sprocket-wheel E, chain E and sprocketwheel E to the jack, which is rigidly attached to said sprocket-wheel E The mechanism by which motion in either direction is given to the jack-controllingwheel E is shown in Figs. 1 and at and consists in a swinging bracket-piece F, pivoted at F to the frame of the machine. This bracket-piece 1* has but a small motion and is held in place by a stiff flat spring F. A frictiondvheel F is mounted on stud F extending from the bracket-piece F. This wheel F is connected to a belt-wheel F (see Fig. 1.) said belt-wheel F being driven by the belt from the pulley E The friction-wheel F in its normal position is held by the spring F, so as not to be in contact with the jack-controlling wheel E, so that it may be in constant motion, but doing no work. Then it is required that the motion of the wheel E shall be imparted directly to the jack-controlling wheel E, then the operator by moving the lever H, which is pivoted to the bracket-piece F at 11', causes the hook II 011 the lower end of the said lever to come in contact with a boss II on the bracket-piece F and, reacting through the pivot II, cause the said b'acket-pieee F to tilt, thus throwing the friction-wheel E into contact with the wheel E and causing it to rotate in the direction of the arrow 5. lVhen it is desired to cause the wheel E to rotate in a direction opposite to the arrow S, then the operator pushes the lever II away from him. This action brings the friction-wheel F (pivoted to the lever Hat I1 first against the frietion-wheel F from which it takes its inction. Then a continued movement of the lever II will tilt the bracket F downward and bring the friction-wheel F in contact with the jack controlling wheel E and cause it to rotate in a direction opposite to the arrow S. As the motion of the j ack-controlling wheel E is much reduced before it is finally transmitted to the jack, it will be understood that the operator has ample time to throw the lever II in one or the other direction, as he wishes the jack to swing either to or from him, or by allowing the bracket-piece F to be held in its normal position by the spring F then the jackcontrolling wheel E may be turned by hand.

I claim 1. In a sole leveling machine a frame swingin g upon the trunnions of a hollow drum, said drum beingfree to turn on its axis, and the said drum, a leveling-roller frame sliding in the said swinging frame and carrying a soleleveling roller,means for operating said rollerframe, transmitting mechanism attached to the hollow drum and to a lever by means of which the said drum may be oscillated thereby giving the required inclination to the sole-leveling roller substantially and for the purpose set forth.

2. Ina sole-leveling machine the combina tion of a shoe-holdin g jack mounted upon the axis of the jack-controllin g wheel E with the bracket-piece F and its actuating-lever ll, friction-housing wheels F F adapted to im part motion to the said 3' ack-controllin g wheel and mechanism for transmitting motion from the jack-co11trolling wheel to the said jack substantially as and for the purpose set forth.

3. In a sole-leveling machine the combination of the leveling-rollerframe13 3 adapted to swing on a hollow drum said drum turning on its and having a trunnion 15: with the link 13 connected to said trunnion and adapted to be operated by a lever substantially :1 and'for the purpose set forth.

In testimony whereof I have signed my name to this specification, in the presence 01. two subscribing witnesses, on this th day of December, A. D. 1895.

ALBION K. \VASIIBURN.

\Vitnesses:

FRANK G. PARKER, FRANK G. I'IATIEE. 

